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【英文标准名称】:Methodsofmeasurementforequipmentusedindigitalmicrowaveradiotransmissionsystems-Part3:Measurementonsatelliteearthstations;section5:Up-anddown-converters(IEC60835-3-5:1994);GermanversionEN60835-3-5:1994
【原文标准名称】:数字微波无线电发射系统设备测量方法.第3部分:卫星地面站测量.第5节:上变频器和下变频器
【标准号】:EN60835-3-5-1994
【标准状态】:现行
【国别】:
【发布日期】:1994-07
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数字信号;接收机;接收机;变换;测量技术;卫星通信;无线电通信;地面站;信号传输;微波链路;无线电设备;电信;检验;电信系统;电气工程;卫星通信链路;陆地的;传输系统;差转机;检验规范;额定值;传播技术;微波;测量;发射机;规范(验收);特性;通信链路
【英文主题词】:Communicationtechnology;Conversion;Digitalsignals;Down-converters;Earthstations;Electricalengineering;Inspection;Inspectionspecification;Measurement;Measuringtechniques;Microwaveconnection;Microwavelinks;Microwaves;Properties;Radioequipment;Radiosystems;Radiocommunication;Ratings;Receiver;Receivers;Satellitecommunications;Satellitelinks;Signaltransmission;Specification(approval);Telecommunication;Telecommunicationlinks;Telecommunicationsystems;Terrestrial;Transmissionsystems;Transmitters;Transmittingset;Transposers;Up-converters
【摘要】:
【中国标准分类号】:M34
【国际标准分类号】:33_060_30
【页数】:11P.;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforDesignofArticlestoBeElectroplatedonRacks
【原文标准名称】:机件在支架上电镀的设计的标准实施规程
【标准号】:ASTMB507-1986(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1986
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:B08.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Design--metals/alloysprocessing;Electrodepositedcoatings;Electroplatedcoatings;ElectroplatedNicoatings;Engineeredelectrodepositedcoatings;Geometricanalysis;Metalsandmetallicmaterials;Nickelcoatings;Racks;Throwingpower
【摘要】:Whenanarticleistobeelectroplated,itisnecessarytoconsidernotonlythecharacteristicsoftheelectroplatingprocess,butalsothedesignoftheparttominimizeelectroplatingandfinishingcostsandsolutiondragoutaswellastoimproveappearanceandfunctionality.Itisoftenpossibleduringthedesignandengineeringstagestomakesmalladjustmentsinshapethatwillresultinconsiderablebenefittowardabetterqualitypartatalowercost.Thespecificpropertyofanelectroplatingprocessthatwouldrequiresomeattentiontothedetailsofoptionaldesigns,isthethrowingpoweroftheelectroplatingsolution.Throwingpoweristheimprovementofthecoatingdistributionovertheprimarycurrentdistributiononanelectrode(usuallycathode)inagivensolution,underspecifiedconditions.1.1Thispracticecoversdesigninformationforpartstobeelectroplatedonracks.Therecommendationscontainedhereinarenotmandatory,butareintendedtogiveguidancetowardgoodpractice.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J36
【国际标准分类号】:25_220_20
【页数】:5P.;A4
【正文语种】:英语